Measuring the Water Vapor Content of Gases Dehydrated by Triethylene Glycol

Abstract

Recently published data indicate that the water vapor con-tent of a gas, as determined by dew point measurement, is inaccurate when the gas has been dehydrated with diethylene glycoL Water vapor contents and dew point measurements of gases dehydrated with triethylene glycol have been obtained in this investigation in order to determine the magnitude of a similar error, jf one exists. Experimental data show a very low concentration of tri-ethylene glycol vapor in gases dehydrated at atmospheric tem-peratures and pressures ranging from 500 to 2,500 psia, and that the accuracy of dew point measurements is not impaired by the presence of triethylene glycol vapor_